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1234e3fd RK |
1 | #ifndef DMA_H |
2 | #define DMA_H | |
3 | ||
4 | #include <asm/glue-cache.h> | |
5 | ||
6 | #ifndef MULTI_CACHE | |
7 | #define dmac_map_area __glue(_CACHE,_dma_map_area) | |
8 | #define dmac_unmap_area __glue(_CACHE,_dma_unmap_area) | |
9 | ||
10 | /* | |
11 | * These are private to the dma-mapping API. Do not use directly. | |
12 | * Their sole purpose is to ensure that data held in the cache | |
13 | * is visible to DMA, or data written by DMA to system memory is | |
14 | * visible to the CPU. | |
15 | */ | |
16 | extern void dmac_map_area(const void *, size_t, int); | |
17 | extern void dmac_unmap_area(const void *, size_t, int); | |
18 | ||
19 | #else | |
20 | ||
21 | /* | |
22 | * These are private to the dma-mapping API. Do not use directly. | |
23 | * Their sole purpose is to ensure that data held in the cache | |
24 | * is visible to DMA, or data written by DMA to system memory is | |
25 | * visible to the CPU. | |
26 | */ | |
27 | #define dmac_map_area cpu_cache.dma_map_area | |
28 | #define dmac_unmap_area cpu_cache.dma_unmap_area | |
29 | ||
30 | #endif | |
31 | ||
32 | #endif |